/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").  
 * You may not use this file except in compliance with the License.
 *
 * See LICENSE.txt included in this distribution for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at LICENSE.txt.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2005, 2021, Oracle and/or its affiliates. All rights reserved.
 * Portions Copyright (c) 2017-2018, Chris Fraire <cfraire@me.com>.
 */

package org.opengrok.indexer.analysis.document;

import java.util.Locale;
import org.opengrok.indexer.analysis.JFlexSymbolMatcher;
%%

%public
%class TroffFullTokenizer
%extends JFlexSymbolMatcher
%unicode
%int
%include ../CommonLexer.lexh
%caseless
%char

//WhiteSpace     = [ \t\f\r]+|\n
Identifier = [a-zA-Z_] [a-zA-Z0-9_]*
Number = [0-9]+|[0-9]+\.[0-9]+| "0[xX]" [0-9a-fA-F]+
Printable = [\@\$\%\^\&\-+=\?\.\:]

%%
^\.(EQ|in|sp|ne|rt|br|pn|ds|de|if|ig|el|ft|hy|ie|ll|ps|rm|ta|ti|NH|DT|EE)[^\n]* {}
^.[a-zA-Z]{1,2} {}
\\f[ABCIR]  {}
^"...\\\"" {}

\\&.        {
    onSymbolMatched(".", yychar); return yystate();
}

{Identifier}|{Number}|{Printable} {
    onSymbolMatched(yytext().toLowerCase(Locale.ROOT), yychar);
    return yystate();
}

[^]    {}
